Search for	Example	Results
A single word	`cat`	Topics that contain the word "cat". You will also find its grammatical variations, such as "cats".
A phrase. You can specify that the search results contain a specific phrase.	`"cat food"` (quotation marks)	Topics that contain the literal phrase "cat food" and all its grammatical variations. Without the quotation marks, the query is equivalent to specifying an OR operator, which finds topics with one of the individual words instead of the phrase.

Search for	Operator	Example
Two or more words in the same topic	`AND` `and` `+` (plus symbol) `&` (ampersand)	`cat AND dog` `"cat food"+milk` `"cat food"&"dog food"`
Either word in a topic	`OR` `or` `\|` (pipe)	`cat OR dog` `cat \| dog`
Topics that do not contain a specific word or phrase	`NOT` `not` `!` (exclamation point)	`NOT cat` `! dog`
Topics that contain one string and do not contain another	`^` (caret)	`cat ^ mouse`
A combination of search types	`( )` parentheses	`cat + (dog \| mouse)` `cat \| dog + (! mouse)`

Universal DiscoveryContent Pack 28.00 (CP28)

Troubleshoot > Troubleshooting and Limitations – Discovery Modules > Troubleshooting and Limitations – No-Credentials Discovery

Troubleshooting and Limitations – No-Credentials Discovery

This section describes troubleshooting and limitations for No-Credentials discovery.

Error Message	Reason	Solution
Can't parse XML document with Nmap results. Skipped.	nmap.exe failed before it could create a valid XML file.	Try to restart the Nmap job. Try to reduce the number of threads for the Nmap job.
Error nmap result file is missing	nmap.exe failed before it could create an XML file.	Try to restart the Nmap job. Try to reduce the number of threads for the Nmap job.
The system cannot execute the specified program (in the communication log file)	The Windows system cannot launch the Nmap application.	Verify that: The correct Nmap version has been downloaded and installed. WinPcap has been installed. For details on these installations, see Prerequisites- Set up protocol credentials. If you have installed Nmap and WinPcap, and the error message still appears in the communication log, install vcredist_x86.exe from C:\UCMDB\DataFlowProbe\runtime\probeManager\discoveryResources.
Nmap is not installed on Probe machine	Nmap is not installed on the Probe machine.	Try to launch Nmap from the command line. Make sure that Nmap is installed. For details on the installation, see Prerequisites- Set up protocol credentials.